A136850 Numbers k such that k and k^2 use only the digits 0, 1, 3, 6 and 9.

0, 1, 3, 6, 10, 13, 19, 30, 31, 60, 63, 100, 103, 130, 190, 199, 300, 301, 306, 310, 369, 600, 603, 630, 1000, 1003, 1030, 1300, 1900, 1990, 1999, 3000, 3001, 3006, 3010, 3060, 3100, 3690, 6000, 6003, 6030, 6300, 10000, 10003, 10030, 10300, 10301, 13000, 19000, 19900, 19990, 19999, 30000, 30001, 30006, 30010, 30060, 30100, 30103, 30600, 31000, 31131

Offset

1,3

Comments

Generated with DrScheme.

Links

Jonathan Wellons, Table of n, a(n) for n = 1..1113

J. Wellons, Tables of Shared Digits [archived]

Example

310960393031^2 = 96696366033993993366961.

Crossrefs

Sequence in context: A189368 A128039 A027428 * A079248 A280774 A083505

Adjacent sequences: A136847 A136848 A136849 * A136851 A136852 A136853

Keyword

base,nonn

Author

Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008

Status

approved